#!/bin/sh
# BasOS Jan 2006
#
# Script for usbmount to remove standard symlinks to specific partitions
# Patritions are defined in /etc/usbmount/partitions.conf setting the variable PARTITIONS
# PARTITIONS is space delimited list of partition definitions and corresponding mount points 
# A partition definition is a comma dellimited list whith a -mpoint= entry specifying the
# symlink, a -label= and/or -uuid= entry specifying a label match and/or uuid match.
#e.g. PARTITIONS="-label=lab1,-mpoint=/mnt/a -uuid=EA32-3AE4,moint=/mnt/b 
# -label=lab2,-uuid=EADE-EA34,-moint=/mnt/c"
#
# Το παρόν χρησιμοποιείται με το usbmount και εγκαθίσταται στο /etc/usbmount/mount.d
# Διαγραφει στανταρ slinks για συγκεκριμενα partitions τα οποία ορίζονται στο 
# /etc/usbmount/partitions.conf στη μεταβλητή PARTITIONS. Η τελευταία είναι μία λίστα χωριζόμενη
# με κενά με ορισμούς partition. Καθε ορισμός partition είναι μια λίστο χωριζόμενη με κόμμα
# που περιέχει μια καταχώρηση -mpoint= για το symlink του partition , μία καταχώρηση -label=
# ή/και μια καταχώρηση -uuid= για τον προσδιορισμό του label ή/και του uuid ενος partition.
# Τα στοιχεία (label,uuid) ενός partition τα βλέπουμε με το vol_id device
# π.χ. PARTITIONS="-label=lab1,-mpoint=/mnt/a -uuid=EA32-3AE4,moint=/mnt/b 
# -label=lab2,-uuid=EADE-EA34,-moint=/mnt/c"
#
# This file is free software; the copyright holder gives unlimited
# permission to copy and/or distribute it, with or without
# modifications, as long as this notice is preserved.
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
#
#v0.5
d="off";

# Log a string via the syslog facility. 2004, 2005 Martin Dickopp
log()
{
  if test $1 != "debug" || test "$d" = "on"; then
	logger -p user.$1 -t "partitionumount[$$]" -- "$2"
  fi
}

if test -r /etc/usbmount/partitions.conf; then
    . /etc/usbmount/partitions.conf
else
    log warning "partitions.conf not found"
    exit 1;
fi

for v in $PARTITIONS; do
  mpoints=`echo $v | grep -o "\-mpoint=[^,]*" | sed "s/-mpoint=//"`;
  if (! test -z "$mpoints") ;then
    for mpoint in $mpoints ;do
      if test -L "$mpoint" && test `ls -l "$mpoint" | grep -o '\->.*' | sed "s/-> //"` = "$UM_MOUNTPOINT" ;then
        if test "$d" = "on" ;then
	  echo "Removing $mpoint"
        fi
	rm -f "$mpoint" && log info "Removed $mpoint -> $UM_MOUNTPOINT for $UM_DEVICE"
	
      fi
    done 
  else
      log warning "Erroneus partition description"
  fi
done
 
exit 0